What is in cement?

Answer:

Cement consists of the following composition,

  • Cao - 60 -67 %
  • SiO2 - 17-25%
  • Al2O3 - 3-8%
  • Fe2O3 - 0.5-6%
  • MgO - 0.1-4%
  • Alkalies - 0.4-1.3%
  • SO3 - 1-3%
First answer by Manikkpudur. Last edit by Manikkpudur. Contributor trust: 40 [recommend contributor recommended]. Question popularity: 2 [recommend question].